The flexile theme is one of the better ones, it doesn't really float my boat these days, as it is used on so many sites (so that "ooh aahh" when you first marvelled at its great design no longer applies), but it's a good start.
However the main stumbling block is your logo, which is hard to get past. It's the most important graphical part of your site and I'm afraid it looks fuzzy and I am not sure the colours compliment the forum theme. So I'd concentrate on getting that sharper and maybe a little smaller first, then see if you can tweak some colours to make it all fit in a little better.
I'm still seeing the same logo The bottom edge is almost hitting the nav bar. Maybe decrease the logo more or increase the header space height? I dunno. Maybe some cool forum status buttons would complete the picture?